While Mustafa Keskin's first book, Mundane Stories, focussed on the mundane details of the every day lives of the protagonists, Irregular Mustafa uses the mundane and meticulous to complement the great questions of our lives. A novel rather than a collection of short stories, Irregular Mustafa reveals the blueprints to Keskin's life, layering third-person narrative over first-person diary entries and giving some not-before-seen, yet immediately relatable perspectives of addiction, loneliness, and aging. Full of surprises and frustrations, the story also intriguingly strays into science fiction and questions the boundaries of reality and fantasy, providing a fitting text for the challenges of the 21st century in the western world.